Swivel-loom



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No. 496,668. Patented May 2, 1893.

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H. SGHIPPBRS. SWIVEL LOOM.V

No. 496,668. Patented May 2, 1893.

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SWIVEL LOOM.

N6. 496,666. Patented May z, 1896.

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UNITED PATENT OFFICE.

HEINRICH SCHIPPERS, OE PATERSON, NEW JERSEY.

SWIVEL-LOOM.

SPECIFICATION forming part of Letters Patent No. 496,668, dated May 2,1893.

Application tiled April 29, 1892.

To a/ZZ whom t may concern.:

Be it known that I, HEINRICH SCHIPPERS, a citizen of the United States,residing at Paterson, in the county of Passaic and Stateof New Jersey,have invented certain new and useful Improvements in Swivel-Looms, ofwhich the following is a specification.

This invention relates to improvements in that class of looms that areknown as swivel looms: and the object of my invention is to simplify theconstruction and thereby reduce the cost and simplify the operation ofweaving with such loom.

The invention consists in various constructions and combination of partsand details, that will be fully described and set forth hereinafter andnally pointed out in the claims.

In the accompanying drawings, Figure lis a rear elevation of my improvedswivel loom, some parts being broken out. Fig. 2 is a side view of thesame, some -parts being omitted. Fig. 3 is a part sectional plan-view ofthe same, some parts being omitted. Fig. 4 is a vertical transversesectional view of the same, on the line t 4, of Fig. 3, parts beingomitted. Fig. 5 is an enlarged detail longitudinal sectional view of asliding cam sleeve'and the gear-wheels, and Fig. 6 is an enlargeddetailview of the gear-wheels, parts being broken out and others beingin section on line 6-6 of Figs. 3 and 5.

Similar letters of reference indicate corresponding parts.

The frame A of the loom is of the usual construction and is providedwith the crankshaft A connected by the rod A2 with a lay A3 carrying theusualshuttle race and the swivel shuttle beam A4, which is verticallymovable in relation to the lay and reed cap A40. Two vertically movablerods B are arranged and guided on the back of the lay, and are providedat their upper ends with arms B projecting to the front and supportingthe swivel shuttle beam. Said rods B are pressed upward by helicalsprings B2 surrounding them and resting against collars B3 on the rodsand against fixed stops or brackets B4 of the lay swords. The lower endsof the .rods B are connected by links B5 with two bars B6 that aresecured to a rocking shaft C in the main frame A, said bars B carryingcounter-weights B7at the ends opposite those Serial No. 431,151. (Nomodel.)

connected with the links B5. The rocking shaft C is provided with anupwardly-projecting arm O', on the upper end of which a cam D can act,and which cam is fixed to a sliding sleeve D that is splined on thecam-shaft E of the frame A, so that said sleeve D turns with the shaft Ebut can slide on the same. The sleeve D is provided with acircumferential groove D2, into which the prongs of a fork F pass, saidfork projecting downward from a rocking lever F that is pivoted centrally7 on lugs F2 of a transverse bar F5 of the machine frame. Theends of the rocking bar F are connected by wires f with the Jacquardmechanism. ThedrivingshaftAisprovided at one end with a cog-wheel Gengaging a larger cog-wheel G provided with two opposite tappets G2 thatoperate the picker-stick lever H.- Said cog-wheel G i's mounted on theabove-mentioned cam-shaft E, and the opposite end of the cam-shaft isprovided with" two like tappets g2 that operate the other picker-sticklever h. The picker-sticks H are connected with the picker-stick leversby straps in the usual manner. Each of the picker stick levers H and his provided with a cam piece or shoe I, whichis beveled up-Y ward towardthe center, and said shoes are each formed on the front end of a bar Ipivoted at I2 on the top of the corresponding picker-stick lever, andthe rear ends of said bars I are connected by two rods I5 with theOpposite ends of a lever I4 pivoted on a bracket 85 I5 on the rear endof the machine frame, and one of said rods I5 is pivotally connected atI6 with a lever .I pivoted on a bracket J of the frame A, and the otherend of said lever J passing into a groove in a cam-sleeve that 9o willbe described hereinafter.

The swivel shuttle rack that operates the shuttles vin the swivelshuttle beam in the usual manner is connected by a rod K with an armKwon the upper end of an upright rocking-shaft K2 mounted in a bracketon the lay and in a suitable bracket on the lay rock shaft, whichupright shaft K2 is provided at its lower end with an-arm K3 that isconnected bya connecting rod K4 with one end of a roohorizontally-swinging lever K5 pivoted tol a bracket K6 of the machineframe. From said lever K5 a pin L projects that passes into a groove ofa cam-sleeve that will be described rto hereinafter. On that end of theshaft E op posite the one carrying the cog-wheel G a cog-wheel M isiiXed within the frame A, the cog-wheel G being outside of the frame.Adjacent to said cog-wheel M a cog-wheel N is fixed on one end ofasleeve O mounted loosely on the shaft E. Said cog-wheel N is providedwith a squared or polygonal collar N', against which a plate N2 restswhich plate is secured to one end of a rod N3 mounted in suitable guidesof the frame and acted upon by a helical spring N4 surrounding it. Saidplate N2 bearing against the sides of the polygonal collar N serves tohold the wheel N and sleeve O in diiferent positions until forciblymovedY out of such positions. By the turning of the collar N the plateN2 is pushed back until the collar has made a quarter turn, when saidcollar is again held temporarily in position by said spring-.pressedplate. On a pin P projecting from the frame A two pinions Q Q aremounted and which are connected to rotate together, the pinion Qengaging the cog-wheel M and the pinion Q engaging the cog-wheel N. Thepinion Q is provided with teeth only on half of its circumference, asshown in Figs. 3 and 6. On the sleeve O a cam-sleeve R is mounted bymeans of a spline or key in such a manner that the sleeve R can slide onthe sleeve, O, but rotates with the latter. Said sleeve R is providedwith the `two annular grooves a l), and with the spiral cam A- grooveCZ. A similar camsleeve R is mounted on a sleeve O iixed on the otherend of the shaft E in such a manner that the cam-sleeve R can slide onthe sleeve O', but rotates with the same. Said sleeve R is provided withthe annular grooves a b and with the spiral cam groove d. The end of thelever J, pivoted on the bracket J and previously described, enters thegroove b of the sleeve R, and the pin L on the swinging lever K5 entersthe groove b of the sliding sleeve R. Above the cam-sleeve R a lever Sis pivoted on a standard T of the cross bar F3, and the outer end ofsaid lever S is pivoted at t to the rocking'lever F. Above thecam-sleeve R a like lever S is pivoted at T on the bar F3, and at itsouter end is pivoted at t to the lever F. From the lever S two pins mand n project downward through a guide U on the under side of the barF3, and in like manner two pins m n project downward from the pivotedlever S through a guide U on the under side of the bar F3, the pins m nbeing above the grooves d and a respectively of the cam-sleeve R and thepins m n being above the grooves d cl. respectively of the slidingsleeve R. The rack s on the swivel shuttle beam, pinion t and weightedlever r serve for shifting the swivel shuttle beam in regard to thedesign to be produced, and forni no part of this invention.

The operation is as follows: Vhen the loom is doing plain weaving, theleft-hand end of the lever F is raised (looking from the rear, as inFig. l) and the right-hand is lowered,

the pins at n being in the grooves a and a of the sliding sleeves R Rrespectively. When the swivel shuttles are to be brought in operation,the swivel shuttle beam must be lowered, and then reciprocated and theordinary pickersticks must be stopped. At that time the lever F isbrought in the position shown in Fig. l: that is, the left-hand end islowered and the right-hand end raised. Thereby the pins u n', whichpreviously locked the sleeves R R in position and prevented them fromsliding--are raised, and the pins m m are lowered and pass into the camgrooves d cl of the sleeves R R. By the action of said pins on the sidesof the cam grooves d d', the sleeves R R are'nioved to the right.Thereby that end of the lever J in the groove b of .the sleeve R ismoved to the right and the opposite end is moved to the left, andthereby the rods l2 are moved in such a manner as to swing those ends ofthe bars l with which they are connected toward each other, and theouter ends of the bars carrying the calnshoes or heads I are swungoutward, as shown in dotted lines in Fig. 3: that is, they are moved outof the path of the tappets G2 and g2 respectively, and thus thepicker-stick levers H h are no longer actuated. At the same time bytheabove described movement of the lever F the sleeve D is brought in sucha position that its cam D can act on the arm'C of the rocking shaft Cand presses the upper end of said arm C in the direction of the arrowfr, Fig. et. Thereby those ends of the bars B connected with thevertical rods B supporting the swivel shuttle beam are pressed down andsaid swivel shuttle beam is thus brought in lowered position for theoperation of the swivel shuttles. As the pinion Q has only teeth on halfits circumference, it follows that the sleeve O must remain in apositionof rest during half the rotation of said pinion, and is locked in thesepositions of rest by the spring pressed plate N2 acting on the collar N.When the machine is set for swivel weaving, the swivel shuttle beam islowered once for each revolution of the shaft E, but does not remain inlowered position during said entire revolution. The pickersticksordinarily make two picks for each rol tation of the shaft E, but by thesliding of the cam-sleeve R the cam-heads I on the pickern stick leversare moved out of the way once during each rotation of the shaft E, andthus each picker-stick, instead of making tWo picks for each rotation ofthe shaft E makes only one pick when the loom is set for swivel Weaving,and this pick is made when the swivel shuttle beam is in raisedposition. Likewise the swivel shuttles must make a pick at the time whenthe ordinary picker-sticks are at rest, and for this reason the sleeve Rremains at rest when the picker-sticks operate. Or in other' words thesleeve R must be shifted twice for each time that the sleeve Ris shiftedonce, as the sleeve R must move the camheads H on the picker-sticks onceout of the way and back again for each rotation of the shaft E, and thesleeve R must cause the swivel shuttle to make only one pick. If thesleeve R were rotated as uniformly as the sleeve R', the swivel shuttleswould make two picks-that is, one during the time that the cam-heads onthe picker-stick levers are out of position and another when saidcam-heads of the picker-stick levers are in position, and thus the twopicks would interfere. This operation of alternate picks by the regulariiy shuttle and the swivel shuttles is kept up as long as swivel Weavingis to be performed. AS soon as the weaving is to be changed to plainweaving the left-hand end of the lever F is raised, so as to bring thepins m m out of engagement with the spiral grooves d d of the sleeves RR', and said sleeves are locked in position as regards sliding on theshaft E by the pins n n which pass into the grooves et a. of the sleevesR R. At the same time the sleeve D is shifted in such amanner as tobring the cam D out of engagement with the arm C of the rocking shaft C.Y

Having thus described fny invention, I claim as new and desire to secureby Letters Patentl.l The combination, with a loom frame, of a lay and aswivelshuttle beam on the same, means for-raising or lowering the swivelshuttle beam, a driving shaft in the loom frame,

a camshaft driven from the driving shaft, a cog-wheel fixed on thecamshaft, a cog-wheel mounted loosely on the camfshaft adjacent to thefixed cog wheel, two united pinions en- 2. The combination, with a loomframe, a r

lay and a swivel shuttle beam on'the same, of a driving shaft in theloom frame, a cam shaft driven from the driving shaft, a fixed cog-Wheelon the cam-shaft, a loose cog-wheel on the cam-shaft adjacent to the xedcogwheel, two connected pinions engaging the fixed and loosecog-Wheels'on the cam shaft,

the pinion engaging the loose cog-wheel having teeth on half itscircumference only, a sleeve connected with the loose cog-wheel, a camsleeve mounted upon the sleeve connected with the loose cog-wheel, meansfor automatically shifting said cam sleeve, and a swivel shuttle rackreciprocating device opere ated from said cam sleeve, substantially as`set forth.

In testimony that I claim the foregoing as my invention I have signedmyname in presence of two subscribing witnesses.

` HEINRICH SOHIPPERS.

Y Witnesses:

OscAR F. G UNZ, CHARLES ScHRoEDER.

